ChipFlip
The Ryzen 7 5800XT costs $95.01 more than the Ryzen 7 5800X used, $170 against $74.99. That's more than double the price for a chip AMD released as a mid-cycle refresh, not a new generation. Does the XT actually earn that gap?
What changed between them
Both chips share the same core count, the same architecture, and the same socket. The XT variant runs on an improved manufacturing process that AMD used late in the AM4 platform's life, which mostly translates to slightly higher boost clocks and marginally better efficiency. It isn't a new architecture. It's a refined version of an existing one.
The real-world performance gap is small
For most workloads, the difference between these two chips comes down to single-digit percentage gains in clock-speed-sensitive tasks. Gaming performance moves a little. Heavily multi-threaded work barely moves at all, since core count and thread count are identical. This isn't the kind of gap that changes what a build can do.
Why the price gap is so much bigger than the performance gap
Supply and timing explain more of this than the silicon does. The 5800XT launched later, in smaller volumes, aimed at buyers extending an AM4 build's life rather than starting fresh. Less used-market supply for a niche late-cycle chip pushes prices up independent of actual performance.
Who should pay for the XT
Almost nobody, unless the specific listing is priced well below that $170 mark or you have a genuine reason to want the newest chip AMD ever made for this platform. For nearly every practical build, the 5800X does the same job for less than half the price.
Bottom line
This is a case where the cheaper chip is also the smarter buy for almost everyone. Save the $95 unless you can find a specific reason the XT's small clock advantage matters for your build.